Add configurable time zone (#69)

code/Executable/HostExtensions.cs

@@ -0,0 +1,23 @@
+using System.Reflection;
+
+namespace Executable;
+
+public static class HostExtensions
+{
+    public static IHost Init(this IHost host)
+    {
+        ILogger<Program> logger = host.Services.GetRequiredService<ILogger<Program>>();
+
+        Version? version = Assembly.GetExecutingAssembly().GetName().Version;
+
+        logger.LogInformation(
+            version is null
+                ? "cleanuperr version not detected"
+                : $"cleanuperr v{version.Major}.{version.Minor}.{version.Build}"
+        );
+        
+        logger.LogInformation("timezone: {tz}", TimeZoneInfo.Local.Id);
+        
+        return host;
+    }
+}